Everyday converter

Volume Converter

Convert liquid capacity and three-dimensional volume between metric, cubic, US customary, and imperial units. Similar US and imperial unit names are labeled separately to prevent mix-ups.

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Common volume units

  • Milliliters (mL)1 L = 1,000 mL
  • Liters (L)The unit this converter works in
  • Cubic centimeters (cm³)1 L = 1,000 cm³
  • Cubic meters (m³)1 m³ = 1,000 L
  • US fluid ounces (fl oz)1 L = 33.81402 fl oz
  • US cups (cup (US))1 L = 4.226753 cup (US)
  • US pints (pt)1 L = 2.113376 pt
  • US quarts (qt)1 L = 1.056688 qt
  • US gallons (gal)1 gal = 3.785412 L
  • Imperial fluid ounces (fl oz (imp))1 L = 35.19508 fl oz (imp)
  • Imperial pints (pt (imp))1 L = 1.759754 pt (imp)
  • Imperial gallons (gal (imp))1 gal (imp) = 4.54609 L
  • Cubic inches (in³)1 L = 61.02374 in³
  • Cubic feet (ft³)1 ft³ = 28.31685 L

Conversion formula

Every conversion here uses the published factor, not a rounded one.

Example: Liters to US gallons

1 L = 0.2641721 gal

To convert liters to us gallons, multiply by 0.2641721:

5 L = 1.32086 gal

Figures on this page are shown to seven significant digits. The converter keeps the full precision and rounds only what it displays.

Did you know?

A US gallon is exactly 231 cubic inches, or 3.785411784 litres. The imperial gallon is a different measure entirely at 4.54609 litres — about 20% larger.

US fluid ounces and imperial fluid ounces differ too, so a recipe in imperial units will not scale correctly with US cups.

How to use this converter

  1. Choose unitsSelect the source and destination units for the measurement.
  2. Enter a valueThe converted result updates from the maintained unit formula.
  3. Copy and verifyCopy the result and check the units and rounding required by the destination.

Processing and privacy

Conversion math runs locally in the browser without a calculation API. This category converter can store selected units and values in the page URL so a state can be restored or shared; avoid sharing a URL that contains a value you consider sensitive. Ordinary hosting and analytics are separate from the conversion logic.

Unit guide

Metric, cubic, US, and imperial volume units

Volume measures three-dimensional space or liquid capacity. This converter labels US and imperial fluid units separately because their ounces, pints, and gallons are not the same size.

Milliliter, liter, and cubic centimeter

1 mL equals exactly 1 cm³. Liters and milliliters are common for drinks, containers, and recipes.

Cubic meter, foot, and inch

Cubic units describe boxes, rooms, freight, and solid volume based on three linear dimensions.

US cup, pint, quart, and gallon

US customary liquid measures; 1 US gallon is exactly 3.785411784 liters.

Imperial fluid ounce, pint, and gallon

UK imperial measures are larger than their US counterparts; 1 imperial gallon is exactly 4.54609 liters.

How the math works

Volume conversion formulas

Quick reference

Volume conversion reference

The table uses US liquid gallons. Imperial gallons are larger and are separately labeled in the converter.

Liters to US gallons

Liters to US gallons
Liters (L)US gallons (gal)
1 L0.264172 gal
2 L0.528344 gal
5 L1.32086 gal
10 L2.641721 gal
20 L5.283441 gal
50 L13.208603 gal
100 L26.417205 gal

1 US gallon = 3.785411784 liters; 1 imperial gallon = 4.54609 liters.

Everyday use

Practical volume conversion examples

Cooking and drinks

Convert recipe amounts while checking whether the source means a US cup or an imperial measure.

Fuel and containers

Compare tank, bottle, aquarium, or appliance capacities stated in liters or gallons.

Freight and storage

Convert cubic feet and cubic meters when estimating the space occupied by boxes or equipment.

Context

Where volume units are used

Liters and milliliters are standard on beverages, medicine measures, and metric recipes. US cups and fluid ounces are common in American cooking, while gallons appear on fuel and large containers.

Cubic meters and cubic feet describe freight, room volume, and solid space. US and imperial fluid units must be kept distinct because the same unit name can represent a different capacity.

Frequently asked questions

How many liters is 1 US gallon?

1 US gallon is 3.785411784 liters. That is the exact US liquid gallon. Multiply gallons by 3.785411784 for liters.

How many US gallons is 1 liter?

1 liter is 0.264172 US gallons. Divide liters by 3.785411784 for US gallons. A 2 liter bottle is about 0.528 gallons.

How many milliliters is 1 US cup?

1 US cup is 236.588 milliliters. US cooking volume uses that cup size. 1 US tablespoon is 14.7868 milliliters.

How many US fluid ounces is 500 ml?

500 ml is 16.907 US fluid ounces. Divide milliliters by 29.5735 for US fl oz. 1 US fl oz is 29.5735 ml.

Is this volume converter free with no sign-up?

Yes. This converter is free with no sign-up and no account. Use it as often as you need in your browser.